Diabetes is a serious illness that affects an estimated 7% of the US population, and is associated with life-threatening and disabling complications. Research has shown that diabetes affects both the patient and family, and that support from one's spouse has been found to be the most important source of support during illness episodes. Research clearly shows that marital interaction, i.e., how the support is given and received, impacts both marital quality and health functioning. Despite the acknowledged importance of social support, the vast majority of chronic illness interventions target the individual patient. Telephone counseling has been effectively used to enhance feasibility and target patients with many illnesses, and has many benefits including low cost, decreased subject burden, and the ability to reach a broader population. This study proposes a study of a telephone-administered behavior change that promotes couples communication and collaboration.